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Polish Journal of Management Studies > 2019 > Vol. 19, No. 1 > 117--129
Rehionalna ekonomika > 2009 > 2(52) > 71-80
Rehionalna ekonomika > 2008 > 2(48) > 261-269
Polish Journal of Management Studies > 2019 > Vol. 19, No. 1 > 117--129
Rehionalna ekonomika > 2009 > 2(52) > 71-80
Rehionalna ekonomika > 2008 > 2(48) > 261-269